Merge branch 'ab/i18n-basic'

* ab/i18n-basic: i18n: "make distclean" should clean up after "make pot" i18n: Makefile: "pot" target to extract messages marked for translation i18n: add stub Q_() wrapper for ngettext i18n: do not poison translations unless GIT_GETTEXT_POISON envvar is set i18n: add GETTEXT_POISON to simulate unfriendly translator i18n: add no-op _() and N_() wrappers commit, status: use status_printf{,_ln,_more} helpers commit: refer to commit template as s->fp wt-status: add helpers for printing wt-status lines Conflicts: builtin/commit.c